Powellite and Andalusite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.23
  
3.05-3.21
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
{111} Distinct
  
Good on {110}, poor on {100}
  
Mohs Hardness
3.5-4
  
7.5
  
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Powellite and Andalusite Chemical Formula
While comparing Powellite and Andalusite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Powellite and Andalusite chemical formula.
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Powellite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Powellite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.